+1.84(+0.12%)

-0.56(-0.91%)

-5.90(-0.44%)

-0.18(-1.07%)

-0.00(-0.01%)

Apple details new heart-tracking features for Watch

Apple is expanding the health-monitoring features of its Watch line with a focus on the heart.

Apple is expanding the health-monitoring features of its Watch line with a focus on the heart. The Apple Watch is getting an improved heart-rate monitoring system that allows users to raise their wrists to see their heart rates, among a raft of other new features. The Watch will also notify wearers if their heart rate jumps up when they're not actually exercising, potentially signaling a problem.

Apple wants the Watch to be able to detect common heart conditions such as atrial fibrilation, which affects tens of millions of people and often goes undiagnosed. To this end, Apple is partnering with clinicians at Stanford for a study to determine whether the Watch can detect abnormal heart rhythms, or arrhythmias, in wearers.